UIViewControllerHierarchyInconsistency 仅在 iOS 8 和 Xcode 6 中使应用程序崩溃答案

【问题标题】：UIViewControllerHierarchyInconsistency crashes app only in iOS 8 and Xcode 6UIViewControllerHierarchyInconsistency 仅在 iOS 8 和 Xcode 6 中使应用程序崩溃
【发布时间】：2014-09-16 09:36:42
【问题描述】：

我有一个在 iOS 7 和 Xcode 5 中运行良好的应用程序。当我将它更新到 iOS 8 和 Xcode 6 时，当应用程序尝试在视图中向上滑动 UIDatePicker 时，当点击 textField 时它会崩溃。我正在使用故事板。有人知道为什么吗？

我已经读过这个，但它是为 Xib 设计的。

App crashes on IOS 6 - UIViewControllerHierarchyInconsistency

请帮忙谢谢

我的代码：

- (void)textFieldDidBeginEditing:(UITextField *)textField
{

    //set picker color start
    [self.myDatePicker setBackgroundColor:[UIColor greenColor]];


    //set picker color finish
    //calculate bounds start
    CGRect textFieldRect = [self.view.window convertRect:textField.bounds fromView:textField];
    CGRect viewRect = [self.view.window convertRect:self.view.bounds fromView:self.view];
    //calculate bounds finish
    //calculate the fraction between the top and bottom of the middle section for the text field's midline start
    CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
    CGFloat numerator = midline - viewRect.origin.y
    - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
    CGFloat denominator = (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION)
    * viewRect.size.height;
    CGFloat heightFraction = numerator / denominator;
    //calculate the fraction between the top and bottom of the middle section for the text field's midline finish
    //Clamp this fraction so that the top section is all "0.0" and the bottom section is all "1.0 start
    if (heightFraction < 0.0)
    {
        heightFraction = 0.0;
    }
    else if (heightFraction > 1.0)
    {
        heightFraction = 1.0;
    }
    //Clamp this fraction so that the top section is all "0.0" and the bottom section is all "1.0 finish
    /*start
     Now take this fraction and convert it into an amount to scroll by multiplying by the keyboard height for the current screen orientation. Notice the calls to floor so that we only scroll by whole pixel amounts */
     UIInterfaceOrientation orientation =
     [[UIApplication sharedApplication] statusBarOrientation];
     if (orientation == UIInterfaceOrientationPortrait ||
     orientation == UIInterfaceOrientationPortraitUpsideDown)
     {
     animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
     }
     else
     {
     animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
     }
     //finish
    //Finally, apply the animation start
    CGRect viewFrame = self.view.frame;
    viewFrame.origin.y -= animatedDistance;

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
    [self.view addSubview:self.myDatePicker];
    [self.view setFrame:viewFrame];

    [UIView commitAnimations];


}
    //Finally, apply the animation finish
    //Animate back again start

我的崩溃日志

2014-09-14 13:12:52.930 Pay 2014-15 free[2191:83060]
 *** Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency', 
reason: 'child view controller:<UICompatibilityInputViewController: 0x7be0a570> should have parent view controller:<AddHoursViewController: 0x7c38e800> but requested parent is:<UIInputWindowController: 0x7c238a00>'
*** First throw call stack:
(
    0   CoreFoundation                      0x02101df6 __exceptionPreprocess + 182
    1   libobjc.A.dylib                     0x01d8ba97 objc_exception_throw + 44
    2   CoreFoundation                      0x02101d1d +[NSException raise:format:] + 141
    3   UIKit                               0x008cff9c -[UIViewController _addChildViewController:performHierarchyCheck:notifyWillMove:] + 210
    4   UIKit                               0x00f4b44d -[UIInputWindowController changeToInputViewSet:] + 576
    5   UIKit                               0x00f4c1be __43-[UIInputWindowController setInputViewSet:]_block_invoke + 103
    6   UIKit                               0x007f73bf +[UIView(Animation) performWithoutAnimation:] + 82
    7   UIKit                               0x00f4bf9c -[UIInputWindowController setInputViewSet:] + 374
    8   UIKit                               0x00ce9101 __64-[UIPeripheralHost(UIKitInternal) setInputViews:animationStyle:]_block_invoke1459 + 43
    9   UIKit                               0x00f473af -[UIInputWindowController performOperations:withAnimationStyle:] + 56
    10  UIKit                               0x00ce9006 -[UIPeripheralHost(UIKitInternal) setInputViews:animationStyle:] + 1242
    11  UIKit                               0x00ce91df -[UIPeripheralHost(UIKitInternal) setInputViews:animated:] + 73
    12  UIKit                               0x00ce922b -[UIPeripheralHost(UIKitInternal) setInputViews:] + 68
    13  UIKit                               0x00ce1478 -[UIPeripheralHost(UIKitInternal) _reloadInputViewsForResponder:] + 1803
    14  UIKit                               0x0092be95 -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] + 316
    15  UIKit                               0x0092b1dc -[UIResponder becomeFirstResponder] + 562
    16  UIKit                               0x007f1de0 -[UIView(Hierarchy) becomeFirstResponder] + 114
    17  UIKit                               0x00fb7ffb -[UITextField becomeFirstResponder] + 51
    18  UIKit                               0x00bbde8f -[UITextInteractionAssistant(UITextInteractionAssistant_Internal) setFirstResponderIfNecessary] + 200
    19  UIKit                               0x00bc04b6 -[UITextInteractionAssistant(UITextInteractionAssistant_Internal) oneFingerTap:] + 2762
    20  UIKit                               0x00bb3d27 _UIGestureRecognizerSendActions + 327
    21  UIKit                               0x00bb25a4 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 561
    22  UIKit                               0x00bb45ed -[UIGestureRecognizer _delayedUpdateGesture] + 60
    23  UIKit                               0x00bb7f6a ___UIGestureRecognizerUpdate_block_invoke661 + 57
    24  UIKit                               0x00bb7e2d _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 317
    25  UIKit                               0x00babd36 _UIGestureRecognizerUpdate + 3720
    26  UIKit                               0x007c771b -[UIWindow _sendGesturesForEvent:] + 1356
    27  UIKit                               0x007c857f -[UIWindow sendEvent:] + 769
    28  UIKit                               0x0078daa9 -[UIApplication sendEvent:] + 242
    29  UIKit                               0x0079d8de _UIApplicationHandleEventFromQueueEvent + 20690
    30  UIKit                               0x00772079 _UIApplicationHandleEventQueue + 2206
    31  CoreFoundation                      0x020257bf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
    32  CoreFoundation                      0x0201b2cd __CFRunLoopDoSources0 + 253
    33  CoreFoundation                      0x0201a828 __CFRunLoopRun + 952
    34  CoreFoundation                      0x0201a1ab CFRunLoopRunSpecific + 443
    35  CoreFoundation                      0x02019fdb CFRunLoopRunInMode + 123
    36  GraphicsServices                    0x0394624f GSEventRunModal + 192
    37  GraphicsServices                    0x0394608c GSEventRun + 104
    38  UIKit                               0x00775e16 UIApplicationMain + 1526
    39  Pay 2014-15 free                    0x0014ed7d main + 141
    40  libdyld.dylib                       0x0736cac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb) `enter code here`

【问题讨论】：

你能显示你正在使用的代码吗？
通过编辑问题添加的代码。请看一下。 UIDatePicker 被添加到情节提要中并连接到属性 @Property(nonatomic, strong) IBOutlet *mypickerVirw;如果我删除连接系统键盘上来，没有崩溃。我试过 [textField resignFirstResponder];它确实停止了键盘出现，但 UIDatePickerView 没有出现并且应用程序崩溃。
这里也一样！有什么消息吗？
我有一些消息：我正在使用这个代码：self.UITextFieldValue.inputView = self.UIDatePickerBirthday;你也有这个吗？我想这就是导致崩溃的原因
我真的把UIDatePicker推到了scrollView里。

标签： ios xcode uitextfield uidatepicker

【解决方案1】：

您以编程方式创建日期选择器，或者如果您将其用作拖入组件，请执行以下步骤

1.以编程方式创建

 datePicker = [[UIDatePicker alloc]init];
[datePicker setDate:[NSDate date]];
//NSString *maxDateString = @"01-Jan-2012";
NSString *theMinimumDate = @"01-Jan-1976";
// the date formatter used to convert string to date
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
// the specific format to use
dateFormatter.dateFormat = @"dd-MMM-yyyy";
// converting string to date
NSDate *theMaximumDate = [NSDate date];//[dateFormatter dateFromString: maxDateString];
NSDate *theminimumDate = [dateFormatter dateFromString: theMinimumDate];

// repeat the same logic for theMinimumDate if needed
// here you can assign the max and min dates to your datePicker
[datePicker setMaximumDate:theMaximumDate];//the max age restriction (if needed, or else dont use this line)
[datePicker setMinimumDate:theminimumDate]; //the min age restriction

// set the mode
[datePicker setDatePickerMode:UIDatePickerModeDate];
// Do any additional setup after loading the view from its nib.
[datePicker addTarget:self action:@selector(updateTextField:) forControlEvents:UIControlEventValueChanged];

// and finally set the datePicker as the input mode of your textfield
[Textfield setInputView:datePicker];

2.来自Xib

[self.DatePickerView removeFromSuperview];
[Textfield setInputView:self.DatePickerView];
[Textfield setInputView:self.DatePickerView];

【讨论】：

【解决方案2】：

日期选择器不应该是任何超级视图的子视图

问题：

您必须确保分配给 inputView 或 inputAccessoryView 的视图不属于任何父视图。也许当您在 ViewController 中从 xib 创建这些视图时，默认情况下它们是超级视图的子视图。

解决方案提示：

对将分配给 inputView 或 inputAccessoryView 的视图使用方法 removeFromSuperview

在此链接中查看详细信息

Error when adding input view to textfield iOS 8

【讨论】：

【解决方案3】：

基本问题可能是由于将日期选择器添加为视图控制器视图的子视图。

删除以下行会阻止这种情况：

[self.view addSubview:self.myDatePicker];

见https://stackoverflow.com/a/25831317/1871400

【讨论】：

【解决方案4】：

问题是您必须确保所有 inputAccessoryView 不属于任何父视图。参考：Error when adding input view to textfield iOS 8。

【讨论】：

【解决方案5】：

-(void)viewDidLoad
                {
    //init and allocate(my problem was addind nil object into view.         
    self.myDatePicker = [[UIDatePicker alloc]init];

    [self.myDatePicker setDatePickerMode:UIDatePickerModeCountDownTimer];

    //to get text off picker
    [self.myDatePicker addTarget:self action:@selector(textFieldDidEndEditing:) forControlEvents:UIControlEventValueChanged];

    //to hide picker
    _tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard)];
}


-(BOOL)textFieldShouldEndEditing:(UITextField *)textField {
    NSDateFormatter *dateFormat = [[NSDateFormatter alloc]init];
    [dateFormat setDateFormat:@"HH:mm"];
    NSDate *date = self.myDatePicker.date;
    //or select pickerViewMode

    switch (textField.tag) {
        case 1: //pulls selected text into textField
            self.textField1.text = [dateFormat stringFromDate:date];
        break;
     }
}

-(void)hideKeyboard {
    //NSLog(@"6  hideKeyboard");
    [self.textField1 resignFirstResponder];
}

【讨论】：

代码说“我的问题是将 nil 对象添加到视图中”，所以我想这就是解释。对我没有帮助，但至少可以解决他的问题。继续我的学业...